Dual parabolic laser driven sealed beam lamp

Abstract

The invention is directed to a sealed high intensity illumination device configured to receive a laser beam from a laser light source. A sealed chamber is configured to contain an ionizable medium. The chamber includes a reflective chamber interior surface having a first parabolic contour and parabolic focal region, a second parabolic contour and parabolic focal region, an ingress surface configured to admit the laser beam into the chamber, and an egress surface configured to emit high intensity light from the chamber. The first parabolic contour is configured to reflect light from the first parabolic focal region to the second parabolic contour, and the second parabolic contour is configured to reflect light from the first parabolic contour to the second parabolic focal region.

What is claimed is: 
     
       1. A sealed high intensity illumination device configured to receive a laser beam from a laser light source comprising:
 a sealed chamber configured to contain an ionizable medium, the chamber further comprising:
 a reflective chamber interior surface further comprising:
 a first substantially parabolic contour having a first parabolic focal region; 
 a second substantially parabolic contour having a second parabolic focal region; 
 an ingress surface; and 
 an egress surface, 
 
 
 wherein the ingress surface is configured to admit a laser beam into the chamber, the first parabolic contour is configured to reflect a high intensity light from the first parabolic focal region to the second parabolic contour, the second parabolic contour is configured to reflect the high intensity light from the first parabolic contour to the second parabolic focal region, and the egress surface is configured to emit the high intensity light from the chamber. 
 
     
     
       2. The sealed high intensity illumination device of  claim 1 , further comprising a first sealing surface ( 1403 ) in a first plane parallel to a horizontal axis of symmetry ( 1390 ) passing through the first parabolic focal region and the second parabolic focal region, wherein the first sealing surface intersects the second parabolic surface. 
     
     
       3. The sealed high intensity illumination device of  claim 2 , wherein the first sealing surface comprises the egress surface. 
     
     
       4. The sealed high intensity illumination device of  claim 3 , wherein the first sealing surface intersects the first parabolic surface, and the first sealing surface comprises the ingress surface. 
     
     
       5. The sealed high intensity illumination device of  claim 2 , further comprising a second sealing surface ( 1430 ) in a second plane parallel to a vertical axis ( 1383 ) orthogonal the horizontal axis ( 1390 ), wherein the second sealing surface comprises the ingress surface. 
     
     
       6. The sealed high intensity illumination device of  claim 5 , wherein the first sealing surface intersects the second sealing surface, and the ingress surface is configured to admit the laser beam to pass through the ingress surface and reflect off of the first parabolic contour toward the first parabolic focal region ( 1321 ). 
     
     
       7. The sealed high intensity illumination device of  claim 5 , wherein the first sealing surface intersects the second sealing surface. 
     
     
       8. The sealed high intensity illumination device of  claim 6 , wherein the ingress surface further comprises a reflective surface ( 1486 ) oriented to reflect radiation to the first parabolic contour and from the reflective surface toward the first parabolic focal region ( 1321 ). 
     
     
       9. The sealed high intensity illumination device of  claim 1 , further comprising a sealing surface ( 1330 ) in a plane orthogonal to a horizontal axis of symmetry ( 1390 ) passing through the first parabolic focal region and the second parabolic focal region,
 wherein the sealing surface comprises the ingress surface and the sealing surface intersects the first parabolic surface. 
 
     
     
       10. The sealed high intensity illumination device of  claim 9 , wherein the sealing surface comprises the ingress surface, and the ingress surface is configured to admit the laser beam to pass through the ingress surface directly toward the first parabolic focal region. 
     
     
       11. The sealed high intensity illumination device of  claim 9 , further comprises a mirror ( 1380 ) within the chamber ( 1320 ) oriented to reflect radiation received from the first parabolic contour back to the first parabolic contour. 
     
     
       12. The sealed high intensity illumination device of  claim 1 , further comprising a plasma sustaining region and a plasma ignition region disposed within the sealed chamber. 
     
     
       13. The sealed high intensity illumination device of  claim 12 , wherein the first parabolic contour and the second parabolic contour are arranged to provide 1:1 imaging from the first parabolic focal region to the second parabolic focal region. 
     
     
       14. The sealed high intensity illumination device of  claim 12 , wherein the plasma sustaining region coincides with the first parabolic focal region. 
     
     
       15. The sealed high intensity illumination device of  claim 1 , further comprising the laser light source disposed external to the sealed chamber and configured to direct a laser light beam directly into the sealed chamber.